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PubMed Central

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PubMed Central
NamePubMed Central
TypeDigital library, Open access repository
LanguageEnglish
RegistrationOptional
OwnerUnited States National Library of Medicine
Launch dateFebruary 2000
Current statusActive

PubMed Central. It is a free digital repository that archives open access, full-text scholarly articles in the biomedical and life sciences. Established and maintained by the United States National Library of Medicine at the National Institutes of Health, it serves as a critical pillar of public access to government-funded research. The archive plays a central role in the global open access movement, ensuring permanent access to a vast corpus of scientific literature.

Overview

This repository operates as a key component of the broader Entrez retrieval system, which includes the premier biomedical citation database, PubMed. While PubMed primarily provides citations and abstracts, this archive stores the complete text of millions of journal articles. Its creation was a direct response to growing demands from the scientific community and advocates like the Public Library of Science for barrier-free access to research literature. The platform's infrastructure supports long-term preservation and integrates deeply with other National Center for Biotechnology Information resources such as GenBank and the Protein Data Bank.

History and development

The concept was formally proposed in 1999 by then-director of the National Institutes of Health, Harold Varmus. The archive launched in February 2000, with the first content coming from the Proceedings of the National Academy of Sciences of the United States of America. A major policy milestone was the 2005 NIH Public Access Policy, which mandated that research funded by the National Institutes of Health must be deposited. This policy was strengthened by the 2008 Consolidated Appropriations Act and later echoed by the 2013 Office of Science and Technology Policy memorandum. International counterparts, such as Europe PubMed Central, have since developed, creating a global network of interoperable repositories.

Content and scope

The archive contains millions of complete articles from thousands of biomedical and life science journals, including prestigious titles like The New England Journal of Medicine, Science, and Nature. Content spans from historical material, such as digitized issues of the Journal of the National Cancer Institute, to contemporary research. It includes a diverse array of publication types, from original research and reviews to clinical case reports. A significant portion of content is deposited in compliance with funder mandates from agencies like the Howard Hughes Medical Institute and the Wellcome Trust.

Access and usage

All content is freely accessible to any user with an internet connection, with no subscription fees or registration barriers. The interface allows for sophisticated searching, browsing by journal title, and downloading of articles in multiple formats including PDF and XML. The system provides powerful linking to related data in DDBJ, the European Molecular Biology Laboratory, and other databases. Tools like the Entrez Programming Utilities enable computational access for large-scale data mining and integration into other research platforms, fostering innovation in fields like bioinformatics.

Impact and significance

The repository has profoundly accelerated the dissemination of scientific knowledge, supporting researchers from institutions like the Broad Institute and the Salk Institute for Biological Studies. It has increased the visibility and citation impact of deposited articles, a phenomenon studied by projects like the Open Citation Project. The archive is a foundational model for other public access initiatives, influencing policies from the Bill & Melinda Gates Foundation and the World Health Organization. Its role in providing immediate access during public health crises, such as the COVID-19 pandemic and the 2014 Ebola outbreak, has been widely recognized.

It is part of a larger ecosystem of scientific resources. The primary bibliographic counterpart is PubMed, which links to full text within the archive. Other related National Library of Medicine resources include MedlinePlus for consumer health and ClinicalTrials.gov for trial registrations. International collaborative efforts include Europe PubMed Central and the WorldWideScience alliance. For chemical and drug information, researchers often consult the PubChem database, also maintained by the National Center for Biotechnology Information.

Category:Digital libraries Category:Open access Category:National Institutes of Health Category:Bioinformatics